Logan accessed an existing database to answer his research question regarding the role of identification of a learning disability and odds of going to a private school. The variables of interest include category of disability, type of school, achievement scores in the first, third, and sixth grade, parents SES. Logan needs to report the correlations among first, third, and sixth grade achievement scores. Which is the most likely measure of relationship appropriate for him to use?
A) Spearman Rho
B) Pearson r
C) Cronbach's alpha
D) Kendall's Tau

Question

Quizplus · Accepted Answer

Pearson r is the appropriate measure of relationship to use when examining the correlations between continuous variables, such as achievement scores. First, third, and sixth grade achievement scores are all continuous variables, so Pearson r is the best choice for Logan to use.

Logan Accessed an Existing Database to Answer His Research Question